Toshiyuki Saito
テックリード ソリューションアーキテクト at Tata Consultancy Services
Greater Tokyo Area Japan
Summary
👤
Senior🎓
Top SchoolToshiyuki Saito is a tech lead and solution architect with 13 years’ experience modernizing large enterprise systems, currently leading SDD-driven legacy-to-microservices transformations at Tata Consultancy Services in the Greater Tokyo Area. He blends front-end and back-end expertise with hands-on leadership—designing automated specification-driven pipelines that generate code, enforce quality checks, and run UT/E2E tests to dramatically cut cost and schedule risk. Toshiyuki has led hybrid, offshore teams to deliver mobile and web BI tools, SVG-based map editors, and Azure OpenAI-powered chatbot PoCs, often acting as scrum master and PMO to align stakeholders and delivery. He’s pragmatic about metrics, defining benchmarks for search precision and response time in RAG/knowledge-graph proofs of concept to drive adoption decisions. Notably, he applies formal SDD tooling (cc-sdd) not just as methodology but as measurable engineering leverage, repeatedly proving its ROI across large-scale modernization programs. His background in business/managerial economics helps him translate technical trade-offs into clear cost and schedule outcomes for clients.
13 years of coding experience
学士（経営学）, Business/Managerial Economics, 学士（経営学）, Business/Managerial Economics at 創価大学
Japanese, Chinese
Github Skills (26)
trie9
binding9
python7
dart6
vue5
vue-typescript5
typescript4
metadata4
metadata-management3
dedicated3
search-engine3
data-management3
ruby2
perl2
rails2
Programming languages (5)
Github contributions (5)
pluswing/ChatService
Nov 2018 - May 2020
typescript + vue.js でチャットサービスを作る！
Contributions:89 commits in 1 year 6 months
vue-jsvue-typescriptvuetypescriptvuejs
pluswing/linechat
Jan 2019 - Feb 2019
Contributions:23 commits in 1 month
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